Bike-on-Bike
Default Config
XL
No Diagram
Default Config
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A40
Very upright stack and reach vs trend of progressive gravel bikes
Design deviates from other sizes of LightCarbon LCG072-D
Geometry
Stack | 638mm | 604.9mm -33.1mm |
Reach | 406mm | 393mm -13mm |
Stack to Reach Ratio | 1.57:1 | 1.54:1 |
Seat Tube Length, Unknown | 585mm | — |
Seat Tube Length, Effective Unknown | — | 536mm |
Top Tube Length, Effective/Horizontal Center | — | 566.6mm |
Top Tube Length, Effective/Horizontal Unknown | 601mm | — |
Top Tube Slope | 7.8deg | — |
Head Tube Angle | 71.5deg | 71.5deg +0deg |
Seat Tube Angle | 73deg | 74deg +1deg |
Head Tube Length | 218mm | 192mm -26mm |
Bottom Bracket Drop | 73mm | 76mm +3mm |
Bottom Bracket Height | 278mm | 285mm +7mm |
Chainstay Length | 420mm | 420mm +0mm |
Chainstay Length Horizontal | 413.6mm | 413.1mm -0.5mm |
Front-Center | 648.5mm | 628.9mm -19.6mm |
Front-Center Horizontal | 644.4mm | 627.3mm -17.1mm |
Wheelbase | 1058mm | 1040.4mm -17.6mm |
Fork Offset/Rake | 47mm | 51.5mm +4.5mm |
Fork Length (On-Axis) | — | 383mm |
Trail | 67.9mm high | 66.5mm -1.4mm high |
Mechanical Trail | 64.4mm | 63.1mm -1.3mm |
Wheel Flop | 20.4mm | 20mm -0.4mm |
Standover Height | 855mm | 828mm -27mm |
Tire to Pedal Spindle | 127.5mm 170 mm cranks | 97.9mm -29.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 108mm 170 mm cranks | 115mm +7mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 40mm | 50mm +10mm |
Tire Outer Diameter | 702mm | 722mm +20mm |
Bike Length with Tires | 1760mm | 1762.4mm +2.4mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Titanium | Carbon/Composite |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Unknown | Disc |
Meta
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| Source | SERK.CC | https://de.lightcarbon.com/uploadfile/downloads/2026-2027%20LightCarbon%20Frame+Component%20Catalog%20-V1.pdf |
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